Quote Originally Posted by BigBangTheory View Post
The trigger is not under any sort of spring tension, it just sort of dangles, freely able to swing fore/aft until it makes contact with the sear.
Any help would be appreciated......
It is completely normal.

The AIA rifles use a standard Lee-Enfield type trigger, all of the L.E. models set up for two-stage flop around loose like that. You are not missing any springs from the trigger - there aren't any in the first place.